| Grefrath to Rivarolo Canavese | 419.68 mi (675.41 km) |
| Grefrath to Rivoli | 436.34 mi (702.23 km) |
| Grefrath to Rocca di Papa | 726.62 mi (1,169.39 km) |
| Grefrath to Rocca Priora | 726.55 mi (1,169.26 km) |
| Grefrath to Roccapiemonte | 831.97 mi (1,338.93 km) |
| Grefrath to Roccastrada | 618.04 mi (994.64 km) |
| Grefrath to Romano di Lombardia | 431.29 mi (694.09 km) |
| Grefrath to Rome | 714.00 mi (1,149.07 km) |
| Grefrath to Roncade | 481.47 mi (774.85 km) |
| Grefrath to Ronchi dei Legionari | 501.16 mi (806.54 km) |
| Grefrath to Ronciglione | 683.47 mi (1,099.94 km) |
| Grefrath to Rosa | 460.58 mi (741.24 km) |
| Grefrath to Rosarno | 1,003.45 mi (1,614.89 km) |
| Grefrath to Rosignano Marittimo | 581.10 mi (935.19 km) |
| Grefrath to Rosolini | 1,088.64 mi (1,752.00 km) |
